rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2632 jiffies s: 56569 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4373 Comm: kworker/0:10 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
RIP: 0010:trace_hardirqs_off_finish+0x8d/0x180 kernel/trace/trace_preemptirq.c:70
Code: eb 06 48 8d 3c dd 68 cb 1f 8e be 08 00 00 00 e8 69 82 4a 00 4c 0f a3 35 d9 ec 96 0c 73 09 e8 7a 93 e3 ff 84 c0 74 0c 5b 41 5c <41> 5e 41 5f c3 0f 0b eb c9 0f 0b eb f0 48 c7 c1 70 cd 1f 8e 80 e1
RSP: 0018:ffffc90000007998 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 0000000000000060 RCX: 9a82e90b94a82500
RDX: 0000000000000000 RSI: ffffffff8adf0d00 RDI: ffffffff8adf0cc0
RBP: 0000000000000000 R08: ffffffff8e1fcb6f R09: 1ffffffff1c3f96d
R10: dffffc0000000000 R11: fffffbfff1c3f96e R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fc13ff8 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irqentry_enter+0x33/0x50 kernel/entry/common.c:382
 sysvec_irq_work+0xa/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 92 31 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007a80 EFLAGS: 00000206
RAX: 9a82e90b94a82500 RBX: 1ffff92000000f58 RCX: 9a82e90b94a82500
RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0d20
RBP: ffffc90000007b80 R08: ffffffff90af4337 R09: 1ffffffff215e866
R10: dffffc0000000000 R11: fffffbfff215e867 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 process_backlog+0x410/0x6f0 net/core/dev.c:6037
 __napi_poll+0xc0/0x460 net/core/dev.c:6603
 napi_poll net/core/dev.c:6670 [inline]
 net_rx_action+0x5dd/0xb20 net/core/dev.c:6784
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 do_softirq+0x142/0x210 kernel/softirq.c:497
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x180/0x1c0 kernel/softirq.c:421
 wg_socket_send_skb_to_peer+0x167/0x1c0 drivers/net/wireguard/socket.c:184
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x1c4/0x7c0 drivers/net/wireguard/send.c:276
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>